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authorAndrew Tridgell <tridge@samba.org>2003-08-13 01:53:07 +0000
committerAndrew Tridgell <tridge@samba.org>2003-08-13 01:53:07 +0000
commitef2e26c91b80556af033d3335e55f5dfa6fff31d (patch)
treefaa21bfd7e7b5247250b47c7891dc1a5ebee6be9 /source4/ntvfs/posix/vfs_posix.c
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first public release of samba4 code
(This used to be commit b0510b5428b3461aeb9bbe3cc95f62fc73e2b97f)
Diffstat (limited to 'source4/ntvfs/posix/vfs_posix.c')
-rw-r--r--source4/ntvfs/posix/vfs_posix.c151
1 files changed, 151 insertions, 0 deletions
diff --git a/source4/ntvfs/posix/vfs_posix.c b/source4/ntvfs/posix/vfs_posix.c
new file mode 100644
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+++ b/source4/ntvfs/posix/vfs_posix.c
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+/*
+ Unix SMB/CIFS implementation.
+ POSIX NTVFS backend
+ Copyright (C) Andrew Tridgell 1992-2003
+ Copyright (C) Andrew Bartlett 2001
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+/*
+ this implements most of the POSIX NTVFS backend
+ This is the default backend
+*/
+
+#include "includes.h"
+
+/*
+ connect to a share - used when a tree_connect operation comes
+ in. For a disk based backend we needs to ensure that the base
+ directory exists (tho it doesn't need to be accessible by the user,
+ that comes later)
+*/
+static NTSTATUS pvfs_connect(struct ntvfs_context *ctx, const char *sharename)
+{
+ struct stat st;
+ struct connection_struct *conn = ctx->conn;
+ NTSTATUS status;
+
+ /* the directory must exist */
+ if (stat(conn->connectpath, &st) != 0 || !S_ISDIR(st.st_mode)) {
+ DEBUG(0,("'%s' is not a directory, when connecting to [%s]\n",
+ conn->connectpath, lp_servicename(SNUM(conn))));
+ return NT_STATUS_BAD_NETWORK_NAME;
+ }
+
+ /* Initialise old VFS function pointers */
+ if (!smbd_vfs_init(conn)) {
+ DEBUG(0, ("vfs_init failed for service %s\n", lp_servicename(SNUM(conn))));
+ return NT_STATUS_BAD_NETWORK_NAME;
+ }
+
+ /* become the user for the rest */
+ status = ntvfs_change_to_user(ctx);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
+
+ /* the posix backend can do preexec */
+ status = ntvfs_connect_preexec(ctx);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
+
+ /* Invoke the old POSIX VFS make connection hook */
+ if (conn->vfs_ops.connect &&
+ conn->vfs_ops.connect(conn, lp_servicename(snum), user) < 0) {
+ DEBUG(0,("make_connection: POSIX VFS make connection failed!\n"));
+ return NT_STATUS_UNSUCCESSFUL;
+ }
+ }
+
+
+ /*
+ * Print out the 'connected as' stuff here as we need
+ * to know the effective uid and gid we will be using
+ * (at least initially).
+ */
+ if( DEBUGLVL( IS_IPC(conn) ? 3 : 1 ) ) {
+ dbgtext( "%s (%s) ", get_remote_machine_name(), conn->client_address );
+ dbgtext( "connect to service %s ", lp_servicename(SNUM(conn)) );
+ dbgtext( "initially as user %s ", user );
+ dbgtext( "(uid=%d, gid=%d) ", (int)geteuid(), (int)getegid() );
+ dbgtext( "(pid %d)\n", (int)sys_getpid() );
+ }
+
+ return NT_STATUS_OK;
+}
+
+/*
+ disconnect from a share
+*/
+static NTSTATUS pvfs_disconnect(struct ntvfs_context *ctx)
+{
+ return NT_STATUS_OK;
+}
+
+/*
+ delete a file - the dirtype specifies the file types to include in the search.
+ The name can contain CIFS wildcards, but rarely does (except with OS/2 clients)
+*/
+static NTSTATUS pvfs_unlink(struct ntvfs_context *ctx, const char *name, uint16 dirtype)
+{
+ NTSTATUS status;
+
+ if (ntvfs_dfs_redirect(ctx, name)) {
+ return NT_STATUS_PATH_NOT_COVERED;
+ }
+
+ status = unlink_internals(ctx->conn, dirtype, name);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
+
+ ntvfs_run_change_notify_queue();
+
+ return NT_STATUS_OK;
+}
+
+
+
+
+
+
+
+/*
+ initialialise the POSIX disk backend, registering ourselves with the ntvfs subsystem
+ */
+BOOL posix_vfs_init(void)
+{
+ BOOL ret;
+ struct ntvfs_ops ops;
+
+ ZERO_STRUCT(ops);
+
+ /* fill in all the operations */
+ ops.connect = pvfs_connect;
+ ops.disconnect = pvfs_disconnect;
+ ops.unlink = pvfs_unlink;
+
+ /* register ourselves with the NTVFS subsystem. We register under the name 'default'
+ as we wish to be the default backend */
+ ret = ntvfs_register("default", NTVFS_DISK, &ops);
+
+ if (!ret) {
+ DEBUG(0,("Failed to register POSIX backend!\n"));
+ return False;
+ }
+
+ return True;
+}